Which radioisotope has an atom that emits a particle with a mass number of 0 and a charge of + 1?

(1) 3H (3) 19Ne

(2) 16N (4) 239Pu

Predict the precipitate that forms when aqueous solutions of silver nitrate and potassium chloride react to form products in a double-replacement reaction.

Which of the following is true about homogeneous mixtures? A. They are known as solutions B. They consist of two or more phases C. They have compositions that never vary D. They are always liquids

Do protons have attraction for neutrons yes or no

What is the volume, in milliliters, of 6.60 g of acetone?

Insulin is a protein that is used by the body to regulate both carbohydrate and fat metabolism. A bottle contains 525 mL of insulin at a concentration of 50.0 mg/mL. What is the total mass of insulin in the bottle?

If the initial concentration of xy is 0.050 m, what is the concentration of xy after 55.0 s?

The glow emitted by a substance exposed to external radiation is called a. phosphorescence. b. bioluminescence. c. fluorescence. d. luminescence

In comparison with liquids and gases solids are: a. more dense b. more compressible c. less organized d. more likely to flow to fill their container

What is the National Suicide rate for Teens?

According to the ph scale, which substance has the highest basicity? a. milk b. oven cleaner c. distilled water d. stomach acid